DE69501066D1 - Synchronous motor with permanent magnets embedded in the rotor - Google Patents

Synchronous motor with permanent magnets embedded in the rotor

Info

Publication number
DE69501066D1
DE69501066D1 DE69501066T DE69501066T DE69501066D1 DE 69501066 D1 DE69501066 D1 DE 69501066D1 DE 69501066 T DE69501066 T DE 69501066T DE 69501066 T DE69501066 T DE 69501066T DE 69501066 D1 DE69501066 D1 DE 69501066D1
Authority
DE
Germany
Prior art keywords
rotor
synchronous motor
permanent magnets
magnetic
magnets embedded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69501066T
Other languages
German (de)
Other versions
DE69501066T2 (en
DE69501066T3 (en
Inventor
Alain Cuenot
Alain Petitboulanger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PARVEX, DIJON, FR
Original Assignee
GEC Alsthom Parvex SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9465801&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69501066(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GEC Alsthom Parvex SA filed Critical GEC Alsthom Parvex SA
Application granted granted Critical
Publication of DE69501066D1 publication Critical patent/DE69501066D1/en
Publication of DE69501066T2 publication Critical patent/DE69501066T2/en
Publication of DE69501066T3 publication Critical patent/DE69501066T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The synchronous motor has magnetic slabs (5) positioned radially in azimuth in the motor rotor (4) which is circular in shape. The motor stator (1) has a number of cut-away sections (2) to hold the coil windings (3). There is a magnetic gap (8) between the rotor and stator. The magnets create a magnetic path cross the magnetic gap which is closed by a path (F3) in the inner rotor section. The reluctance path produces the required 90 degree phase advance without demagnetising the magnets. <IMAGE>
DE69501066T 1994-07-27 1995-07-25 Synchronous motor with permanent magnets embedded in the rotor Expired - Lifetime DE69501066T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409306A FR2723272B1 (en) 1994-07-27 1994-07-27 SYNCHRONOUS MOTOR COMPRISING MAGNETS INSERTED IN A ROTOR
FR9409306 1994-07-27

Publications (3)

Publication Number Publication Date
DE69501066D1 true DE69501066D1 (en) 1998-01-02
DE69501066T2 DE69501066T2 (en) 1998-03-12
DE69501066T3 DE69501066T3 (en) 2006-09-21

Family

ID=9465801

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69501066T Expired - Lifetime DE69501066T3 (en) 1994-07-27 1995-07-25 Synchronous motor with permanent magnets embedded in the rotor

Country Status (8)

Country Link
US (1) US5838086A (en)
EP (1) EP0695018B2 (en)
AT (1) ATE160473T1 (en)
DE (1) DE69501066T3 (en)
DK (1) DK0695018T4 (en)
ES (1) ES2109061T5 (en)
FR (1) FR2723272B1 (en)
GR (1) GR3026007T3 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3308828B2 (en) * 1996-10-18 2002-07-29 株式会社日立製作所 Permanent magnet rotating electric machine and electric vehicle using the same
US6940205B1 (en) * 1997-09-08 2005-09-06 Matsushita Electric Industrial Co., Ltd. Permanent magnet synchronous motor
CN1089202C (en) 1997-09-08 2002-08-14 松下电器产业株式会社 Permanent magnet synchronous motor
FR2787645B1 (en) * 1998-12-18 2001-03-09 Valeo Equip Electr Moteur ROTATING ELECTRICAL MACHINE WITH PERMANENT MAGNETS AND RELUCTANCE HAVING IMPROVED FLOW CAPACITY
US6340857B2 (en) 1998-12-25 2002-01-22 Matsushita Electric Industrial Co., Ltd. Motor having a rotor with interior split-permanent-magnet
EP1032115B1 (en) * 1999-02-22 2007-04-04 Kabushiki Kaisha Toshiba Reluctance type rotating machine with permanent magnets
US6891299B2 (en) 2000-05-03 2005-05-10 Moteurs Leroy-Somer Rotary electric machine having a flux-concentrating rotor and a stator with windings on teeth
FR2821024B1 (en) * 2001-02-20 2003-06-13 Leroy Somer Moteurs DRIVE ELEMENT SUCH AS A DRIVE WHEEL OR A LIFTING WINCH COMPRISING A SYNCHRONOUS MOTOR
JP3797122B2 (en) * 2001-03-09 2006-07-12 株式会社日立製作所 Permanent magnet rotating electric machine
FR2823616B1 (en) 2001-04-17 2008-07-04 Leroy Somer Moteurs ELECTRIC MACHINE COMPRISING AT LEAST ONE MAGNETIC FIELD DETECTOR
FR2823612B1 (en) 2001-04-17 2003-06-13 Leroy Somer Moteurs ELECTRIC ROTATING MACHINE STATOR COMPRISING INDIVIDUAL REMOVABLE COILS
FR2823614B1 (en) * 2001-04-17 2008-07-11 Leroy Somer Moteurs ELECTRICAL ROTATING MACHINE HAVING A STATOR FORM OF ASSEMBLED SECTORS
DE10227129A1 (en) * 2002-06-18 2004-01-29 Cornelius Peter Electrical machine
JP4240949B2 (en) * 2002-08-09 2009-03-18 日立アプライアンス株式会社 Permanent magnet type rotating electrical machine rotor
US20050057106A1 (en) * 2002-12-10 2005-03-17 Ballard Power Systems Corporation Methods and systems for electric machines having windings
US20040217666A1 (en) * 2002-12-11 2004-11-04 Ballard Power Systems Corporation Rotor assembly of synchronous machine
FI117457B (en) * 2004-07-02 2006-10-13 Abb Oy A permanent magnet rotor
US7705503B2 (en) * 2005-09-07 2010-04-27 Kabushiki Kaisha Toshiba Rotating electrical machine
US7385328B2 (en) 2006-05-23 2008-06-10 Reliance Electric Technologies, Llc Cogging reduction in permanent magnet machines
JP4492681B2 (en) * 2007-11-16 2010-06-30 株式会社デンソー Synchronous machine
JP5433198B2 (en) * 2008-10-16 2014-03-05 日立オートモティブシステムズ株式会社 Rotating electric machines and electric vehicles
JP5413719B2 (en) * 2009-07-31 2014-02-12 日立オートモティブシステムズ株式会社 Electric brake device
FR3032839B1 (en) 2015-02-16 2018-05-04 Alstom Transport Technologies ELECTRIC MOTOR ROTOR AND CORRESPONDING ELECTRIC MOTOR
US9925889B2 (en) * 2015-08-24 2018-03-27 GM Global Technology Operations LLC Electric machine for hybrid powertrain with dual voltage power system
JP7229203B2 (en) * 2020-06-30 2023-02-27 株式会社日立産機システム Permanent magnet rotary electric machine and rotor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476408A (en) * 1979-05-23 1984-10-09 General Electric Company High efficiency, low cost permanent magnet AC machine
US4358697A (en) * 1981-08-19 1982-11-09 Siemens-Allis, Inc. Two-pole permanent magnet synchronous motor rotor
CH664652A5 (en) * 1985-05-10 1988-03-15 Portescap SYNCHRONOUS ELECTRIC MOTOR WITH DISC SHAPE ROTOR.
US5223759A (en) * 1987-12-24 1993-06-29 Seiko Epson Corporation DC brushless motor with solid rotor having permanent magnet
US4922152A (en) * 1988-07-27 1990-05-01 Siemens Energy & Automation, Inc. Synchronous machine rotor lamination
FR2652688B2 (en) * 1989-01-11 1991-10-18 Alsthom Gec CONTROL FOR THE CONSTANT POWER OPERATION OF A SYNCHRONOUS MOTOR-DRIVE.
EP0538472B1 (en) † 1990-07-12 1997-10-29 Seiko Epson Corporation Rotor of brushless motor and manufacture thereof
US5097166A (en) * 1990-09-24 1992-03-17 Reuland Electric Rotor lamination for an AC permanent magnet synchronous motor
US5650680A (en) * 1995-12-11 1997-07-22 Marathon Electric Mfg. Co. Dynamo electric machine with permanent magnet rotor structure

Also Published As

Publication number Publication date
DK0695018T3 (en) 1997-12-22
ES2109061T3 (en) 1998-01-01
EP0695018B1 (en) 1997-11-19
DE69501066T2 (en) 1998-03-12
EP0695018B2 (en) 2006-03-22
GR3026007T3 (en) 1998-04-30
ATE160473T1 (en) 1997-12-15
DE69501066T3 (en) 2006-09-21
FR2723272B1 (en) 1996-08-30
FR2723272A1 (en) 1996-02-02
ES2109061T5 (en) 2006-11-16
US5838086A (en) 1998-11-17
EP0695018A1 (en) 1996-01-31
DK0695018T4 (en) 2006-07-24

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: PARVEX, DIJON, FR

8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8328 Change in the person/name/address of the agent

Representative=s name: MOSER & GOETZE PATENTANWAELTE, 45130 ESSEN